10-Day Weather Forecast - Monticello, IL

Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 104.

Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. Southwest winds around 5 mph.

Sunny with highs in the mid 90s. Northwest winds 5 to 10 mph. Heat index values up to 103.

Mostly clear. Humid with lows in the upper 60s. Northeast winds 5 to 10 mph.

Mostly clear. Highs in the mid 80s.

Mostly clear. Lows in the lower 60s.

Mostly clear. Highs in the mid 80s.

Mostly clear. Lows in the lower 60s.

Mostly clear. Highs in the lower 90s.

Mostly clear. Lows in the lower 70s.

Mostly clear. Highs in the lower 90s.

Partly cloudy. A chance of showers after midnight. Lows in the lower 70s. Chance of rain 30 percent.

Mostly sunny. Highs in the upper 80s.

Clear. Low temperature around 70F. Dew point will be around 66F with an average humidity of 74%. Winds will be 1 mph from the S.

Mostly sunny. High temperature around 85F. Dew point will be around 66F with an average humidity of 66%. Winds will be 1 mph from the S.

Clear. Low temperature around 66F. Dew point will be around 65F with an average humidity of 79%. Winds will be 2 mph from the SE.

Mostly sunny. High temperature around 85F. Dew point will be around 67F with an average humidity of 68%. Winds will be 4 mph from the S.

Clear. Low temperature around 67F. Dew point will be around 65F with an average humidity of 75%. Winds will be 4 mph from the S.